baber/WOPTO huggingface dataset:
Patent CA-2108222-A1 (CA)
Inventor: DOHERTY JAMES E
IPC: F16K31/06
Filed: 1993-10-12
Abstract: For use in a combustion-powered, fastener-driving tool having a combustion chamber, a source of a combustible fuel, and a switch that must be closed to enable the tool, a fuel system comprises a fuel injector, which includes a normally closed, solenoid-energized valve between the fuel source and the combustion chamber, and an electronic circuit responsive to the switch for energizing the solenoid to open the valve when the switch is closed and for deenergizing the solenoid after a time interval.  A resistive-capacitive network defining the time interval includes a first resistor, a second resistor arranged to be selectively connected in parallel therewith, a thermistor connected in parallel therewith, and a variable resistor connected to the parallel resistors.  Another network effects a time delay between closure of the switch and energization of the solenoid.  Optionally, another network varies the time interval in response to ambient pressure.
Patent CA-2108342-A1 (CA)
Title: Method for sequentially operating refrigeration system with multiple evaporators
Inventor: CUR NIHAT O
IPC: F25B41/04
Filed: 1993-10-13
Abstract: A method and apparatus for sequentially operating a refrigeration system with multiple evaporators is provided in which only one evaporator is operated at a time and is run until a detected demand for cooling associated with that evaporator is satisfied, or until a predetermined time period has elapsed which corresponds to the normal run time for that evaporator. If the run time expires prior to the demand for cooling being satisfied, and if demand for cooling by another one of the evaporators is present, then operation of the first evaporator is terminated and the other evaporator is operated. Efficiency enhancements are provided such as prematurely initiating operation of a second evaporator at the conclusion of operation of a first evaporator if it appears that a demand for cooling by the second evaporator will occur within a short period of time following termination of operation of the first evaporator.
Patent CA-2108524-A1 (CA)
Inventor: HARPER ERIC
IPC: F24F6/18
Filed: 1993-10-15
Abstract: HUMIDIFICATEUR AUTO-SUFFISANT Dans la présente invention, il s'agit d'un système d'humidification sans entretien, ajustable à l'aide d'un contrôle genre "dimmer", pour plinthes électriques de bas de mur. Ce "dimmer" ajuste la température constante de l'élément chauffant qui, à son tour, contrôle l'ébulition de l'eau maintenant ainsi l'humidité désirée. Contrairement aux systèmes d'humidification existants, celuici a l'avantage d'être sans entretien car il est relié directement au système d'eau de la maison. Il est discret et il peut être incorporé à des plinthes électriques existantes. Il serait également possible de fabriquer l'unité en entier (radiateur-humidificateur) pour les nouvelles constructions.
Patent CA-2108578-A1 (CA)
Inventor: MARSH PETER
IPC: C21C5/52
Filed: 1992-04-03
Abstract: An electric arc furnace or converter is provided with a taphole (2) and/or collector nozzle (10) which is provided, for at least a portion of its length, with an offset bore enlargement (13). The furnace may be a tilting electric arc furnace, and may be provided with a sliding gate taphole valve (3) having a collector nozzle with an offset bore enlargement attached to the sliding gate (9).
Patent CA-2108738-A1 (CA)
Title: Multi-Level Conference Management and Notification
Inventor: BALES BRUCE M
IPC: H04M3/56
Filed: 1993-10-19
Abstract: A multi-level conference in which an originator of telephone conference of the multi-level conference controls the parties that can be added to that conference and can terminate any party at any time. Further, if two existing telephone conferences are combined together to form the multi-level conference, the party that originated the combining of these two conference calls can control not only the parties on its conference call but can disconnect all of the parties on the second conference call. In addition, the control of the conference resides in the telephone terminals beingutilized by the participants, rather than in a centralized service computer. Information concerning the conference and control of the conference is communicated between the telephone terminals utilizing the standard telecommunication communication control channel and does not require the establishment of a separate data call to a centralized service computer. In addition, the telephone terminals display the names and telephone numbers of parties on the multi-level conference and identifies parties controlling the individual conferences. In addition, when two conferences are combined together, each originator of a conference maintains control over their subconference and can independently separate that subconference from the other conference in a multi-level conference.
Patent CA-2109715-A1 (CA)
Title: Process for the preparation of silica aerogel-like material
Inventor: EINARSRUD MARI-ANN
IPC: C01B33/16
Filed: 1992-05-22
Abstract: A process for the preparation of silica xerogel by hydrolysis and polycondensation of a tetraalkoxysilane to form an alcogel which is a silica skeleton surrounded by an aqueous methanol, whereafter the aqueous methanol is removed by evaporation. The alcogel formed is brought in contact with a solution of tetraalkoxysilane, the contact is maintained at or above room temperature to strengthen the silica skeleton, whereafter the gel is dried slowly at or above room temperature and at about atmospheric pressure. Before the alcogel is brought in contact with the solution of tetraalkoxylsilane it may be washed with a solution (e.g. aqueous methanol) to change the composition of the aqueous alcohol surrounding the silica skeleton or to change the functional groups on the surface of the alcogel.
Patent CA-2110170-A1 (CA)
Title: Process for gas assisted injection molding
Inventor: JOHNSON TOM W
IPC: B29C45/00
Filed: 1992-05-29
Abstract: A method for injecting a viscous fluid, such as a thermoplastic, and a non-viscous fluid, such as a gas, into a mold cavity of a mold body includes providing a valve element (48) mounted for reciprocation in a nozzle body flow passage (28) to regulate a flow of viscous fluid through the nozzle body discharge end and into a mold cavity (166). The valve element includes a barrel (50) having a first end selectively engaging a portion of the nozzle body discharge end to prevent a flow of viscous fluid therepast and a second end. A bore (64) extends longitudinally through the barrel and a pin (80) is positioned in the barrel bore. The pin has a first end (82) located adjacent the barrel first end. The pin (80) is operatively secured to the barrel (50) so that the pin moves with the barrel as the barrel reciprocates. A non-viscous fluid flow passage (86) is defined between the pin and the barrel. A  viscous fluid flows through the nozzle body flow passage (28) around the barrel and into a mold cavity. A non-viscous fluid flows through the non-viscous fluid flow passage (86) defined between the barrel and the pin and into the mold cavity (166).
Patent CA-2110374-A1 (CA)
Title: Downshift Inhibitor
Inventor: NEWBIGGING IAN M
IPC: F16H61/18
Filed: 1993-11-30
Abstract: A downshift control for a manually shifted transmission (10) is provided. The control senses vehicle ground speed (100) and compares same to predetermined maximum values (REF1, REF2) at which certain ratios are allowed to downshift engaged. If vehicle speed exceeds the reference (OS > REF), a blocking plunger (216) assumes a position (216B, 216C) wherein selection of the prohibited ratio(s) is automatically mechanically blocked. <IMAGE>
Patent CA-2115971-A1 (CA)
Inventor: MEEKER PAUL K
IPC: A47D13/04
Filed: 1994-02-18
Abstract: A seat for receipt of a child capable of providing exercise and entertainment comprising a seat having a rigid upper support and a lower support therebeneath and a circular bearing surface therebetween, the lower support having leg openings for passage of the legs of a child supported therein. An upper supporting tray has a radially interior opening in a circular configuration for receiving and supporting the seat, the upper supporting tray having a radially exterior periphery with projections extending downwardly therefrom. A bowl-shaped base is provided, the upper periphery of the base having spaced upstanding towers with openings depending from the upper ends thereof. Upstanding posts are also provided, each post having a lower end received within the upper end of a tower, each post having an upper end with a recess for receiving a downwardly depending projection.
Patent CA-2117870-A1 (CA)
Title: Heat recovery steam generator inlet duct
Inventor: BAUVER WESLEY P II
IPC: F15D1/00
Filed: 1994-10-11
Abstract: A duct for joining a higher velocity application to a lower velocity applicationsuch as a heat recovery vapor generator inlet duct apparatus for installation intermediate the exhaust of an associated gas turbine and an associated heat recovery vapor generation apparatus which includes a housing having an inlet and an outlet. The housing has the inlet and the outlet axially offset with respect to each other; and apparatus for directing fluid flow from the inlet to the outlet, the apparatus for directing fluid flow including at least one array of mutually parallel flat plates in stair step relationship extending substantially across the path of gases entering the inlet. In some forms of the invention the apparatus also includes a second array of mutually parallel flat plates in stair step relationship extending substantially across the path of gases exiting through the outlet. The apparatus for directing fluid flow may further include a pressure gradient array and may have a generally L-shaped cross section defined by first and second axial portions, the first portion having a smaller cross-section than the second axial portion, the inlet being in the first portion and the outlet being in the second axial portion. The inlet and the outlet may be disposed in respective faces of the first and second portions that are opposed.
Patent CA-2118287-A1 (CA)
Inventor: CERRUTI SERGIO
IPC: F16L15/00
Filed: 1994-10-17
Abstract: "IMPROVED INTEGRAL JOINT FOR CONNECTING TWO PIPES"            Abstract Integral joint for connecting two pipes, in which from the annular edge of the female pipe an internal flaring with decreasing cross-section extends, which gets engaged, with interference, with a corresponding external counter-flaring provided on the end portion of the male pipe        nearby    the overhanging back shoulder of the latter, in order to create another tight,   all-metal   sealing   with    interference, additionally  to  the  other  tight  sealing  already existing at the front end of said end portion of the male pipe.
Patent CA-2118514-A1 (CA)
Inventor: ALLREAD ALAN R
IPC: F25B41/00
Filed: 1993-05-10
Abstract: A flexible connector (30) to be used individually or in an assembly of connectors. The connector (30) includes a collar (32) comprised of a wall (34) having a cylindrical inner surface (38). The collar wall (34) defines two opposed openings (40, 42). The connector (30) further includes a link (50) comprised of a link wall (52) having at least one spherically-shaped outer surface (54). The link wall (52) defines at least one open end (60) to allow for the passage of a fluid. The link wall (52) is positioned within one of the opposed openings (40, 42) in spaced relationship to the cylindrical inner surface (38) of the collar wall (34). Bearing means (64, 72) and gasket means (86) are positioned in the space defined by the spaced relationship to allow the link to articulate with respect to the collar (32) and also to seal the space between the outer surface of the link (50) and the inner wall (38) of the collar (32).
Patent CA-2118763-A1 (CA)
Title: Process for preparing concentrated fabric conditioning compositions
Inventor: KIEFER JESSE J
IPC: C11D1/46
Filed: 1994-03-10
Abstract: An aqueous concentrated fabric conditioning composition is prepared by adding the co-melted mixture of cationic and nonionic agents to an acid solution. The resulting compositions are stable, have a viscosity of less than 300 cps, a pH of less than 4.0 and an average particle size of from about 2 to about 8 microns.
Patent CA-2126183-A1 (CA)
Title: Elastic Fastening Clamp in Shape of a Double C
Inventor: CIECIELSKI EZILDO
IPC: E01B9/48
Filed: 1993-10-22
Abstract: The invention refers to an elastic fastening clamp in the shape of a double C for fixing a stretch of rail (4) on its respective sleeper (1) by means of a fastening plate (3) provided with matching notches, fixed on the sleeper (1) with elastic fastening clamps (5'), adjusted to each side of the rail at the corresponding notches of plate (3), the upper of the basis of clamp (5') having the shape of an arc with appropriately the same radius as the notch of plate (3), or in other words, the surface of the basis of clamp (5') matches perfectly the surface in half circle of the notch of the plate (3).
Patent CA-2126698-A1 (CA)
Title: Process for the isolation and purification of taxol and taxanes from taxus spp.
Inventor: NAIR MURALEEDHARAN G
IPC: C07D305/14
Filed: 1993-11-08
Abstract: ABSTRACT OF THE DISCLOSURE          A process  for the  separation  of  taxanes, particularly taxol,  cephalomannine,  baccatin III and deacetylbaccatin III,  from ornamental yew tissue is described.   The process involves a specific solvent mixture  of  water  and  50  to  95  percent  by volume methanol,  ethanol  or  acetone  and  treatment  of  the resulting extract using activated carbon, preferably charcoal.  The taxanes are preferably separated from the crude extract by a normal phase chromatographic step which preferably  is through vacuum and then medium pressure  column  chromatographic  separation,  using inexpensive silica gel as an absorbent.  The silica gel is regenerated by heating in a furnace above about 500°C to remove adsorbed organic materials.
Patent CA-2126998-A1 (CA)
Inventor: KWON O-WON
IPC: B61B10/02
Filed: 1994-06-29
Abstract: This invention relates to a power and free conveyor where the chain dog of the power line should be able to move without contacting with  the  swinging hook or  cam, thereby reducing the noise and also reducing the load.
Patent CA-2129571-A1 (CA)
Title: Sterilizable dental/medical handpiece containing electric coil
Inventor: PASCHKE RICHARD H
IPC: A61B17/32
Filed: 1994-08-05
Abstract: An ultrasonic handpiece wherein the entire assembled handpiece may be sterilized with an ingress of the sterilizing fluid into the interior of the handpiece. The handpiece is formed with an elongated housing sleeve and a coil unit for establishing an alternating magnetic field located therein. The housing sleeve and coil unit is assembled such that crevices are formed between the ends of the housing sleeve and coil unit, thus allowing steam, chemicals and heat to pass in and out of the interior of the handpiece for more rapid and thorough sterilizing of the handpiece. Further, the coil unit is not potted to the housing sleeve in order to allow for different thermal coefficients of expansion between materials without the buildup of undue stress.
Patent CA-2130838-A1 (CA)
Title: Process for the preparation of polyisobutyl hydroxyaromatics
Inventor: CHERPECK RICHARD E
IPC: C10L1/192
Filed: 1993-12-20
Abstract: A process for the preparation of a polyisobutyl hydroxyaromatic compound which comprises alkylating a hydroxyaromatic compound in the presence of an acidic alkylation catalyst with a polyisobutene having a number average molecular weight in the range of about 300 to 5,000 and wherein the polyisobutene contains at least about 70% of a methylvinylidene isomer.
Patent CA-2131421-A1 (CA)
Inventor: POST YNGVE
IPC: B23C5/24
Filed: 1994-09-02
Abstract: ABSTRACT            A milling cutter body of basically cylindrical shape has a plurality of grooves (3) of a circular cross-section which overlaps with the envelope surface of the cutter body, these grooves being intended for the insertion of insert-carrying cartridges (4) of a corresponding circular cross-section. The grooves (3) and thereby also the cartridges are not parallel to the axis of rotation of the cutter body but inclined to it. Thereby, a very precise positioning of the parallel land angle of the cutting edges is obtained by turning the cartridge around its own axis.
Patent CA-2131556-A1 (CA)
Title: Joint cutter
Inventor: BATSCHARI CONSTANTIN
IPC: B24B55/05
Filed: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a joint cutter comprising a tool set fitted with a drive in a housing and a casing surrounding the tool set comprising two mutually attachable sections, with a slot via which a segment of the tool set can project.  An order to be able easily to cut slots even in the transition region between mutually inclined surfaces, it is proposed that a rear section of the casing be connected to the drive housing and a front section removable from the rear one cover a further segment of the tool set.
Patent CA-2132590-A1 (CA)
Title: Method for charging molding material in elastic mold die
Inventor: KOHNO HIROSHIGE
IPC: A23L29/20
Filed: 1994-09-21
Abstract: Abstract of the Disclosure In charging a fluid molding material in an elastic molding die composed of a die body having an opening and a die support portion extending from the opening to the outside by pouring the molding material from the opening into the die body, the molding material in an amount of 1/5 to 3/5 of a volume of the die body is first charged, a molding material-charged portion of the die body is then crumpled or pinched, and then the entire die body is filled up with the molding material.  The crumpling or pinching operation is achieved by such means as a blade shutter, pressing plates, air bags, or passing between two plates or conveyor belts, thereby charging the fluid molding material in the die body of the elastic molding die without occurrence of air voids.
Patent CA-2134995-A1 (CA)
Inventor: GLUECK JOACHIM
IPC: H01L29/786
Filed: 1994-11-03
Abstract: A method for manufacturing a matrix of thin-film transistors with storage capacitances, in particular for liquid-crystal displays, which is reliable and produces a high yield of defect-free liquid-crystal displays is disclosed.
Patent CA-2135611-A1 (CA)
Inventor: MCLAUGHLIN THOMAS L
IPC: C09J7/20
Filed: 1993-04-14
Abstract: A pressure-sensitive tape substrate (30) is coated with an adhesive (34), and the adhesive is then printed with an ink or the like (36) that acts as an adhesive-inhibiting masking or barrier along one or more continuous zones or lines. Tapes (41, 42) are formed in whole or in part by slitting along the continuous line or lines so defined. The technique is used to make transfer tapes, diaper fastener tabs, and other products.
Patent CA-2136198-A1 (CA)
Title: Method for Tackless Packaging of Hot Melt Adhesives
Inventor: HATFIELD STEPHEN
IPC: B65B9/20
Filed: 1993-05-14
Abstract: A non-blocking hot melt adhesive mass is packaged by directly pouring or pumping the molten adhesive into a cylindrical plastic tube, the cylindrical tube being in contact with a heat sink.  The resultant adhesive package is provided in a readily handable cartridge form which may be produced in a continuous line operation.
Patent CA-2136513-A1 (CA)
Title: Durable pigmentary titanium dioxide and methods of producing the same
Inventor: BRAND JOHN R
IPC: C01G23/047
Filed: 1994-11-23
Abstract: Pigmentary titanium dioxide having a high durability when used in paint or the like exposed to solar radiation and methods of producing such pigmentary titanium dioxide are provided.  The durable pigmentary titanium dioxide of the invention is comprised of rutile titanium dioxide particles having cerium oxide and dense amorphous silica deposited thereon.  The particles preferably also have an outer coating of hydrous alumina deposited thereon.
Patent CA-2137428-A1 (CA)
Title: Three-stage graft copolymers and thermoplastic molding materials containing said copolymers and having great toughness
Inventor: NIESSNER NORBERT
IPC: C08F285/00
Filed: 1994-12-06
Abstract: Graft copolymers are obtainable by (A) polymerization of from 25 to 60% by weight of a mixture con-sisting essentially of (a1)from 70 to 99.9% by weight of a C1-C18-alkyl ester of acrylic acid, where the alkyl radical may be monosubsti-tuted by phenyl or phenoxy, (a2)from 0.1 to 10% by weight of a polyfunctional monomer and (a3)from 0 to 29.9% by weight of an ethylenically unsaturated monomer which differs from (a1) and (a2) and is copoly-merizable therewith in the presence of from 5 to 25% by weight of a cross-linked silicone rubber and (B) polymerization of from 30 to 50% by weight of a mixture con-sisting essentially of (b1)from 50 to 100% by weight of a styrene compound of the general formula (I)   I     where R1 and R2 independently of one another are each hydro-gen, C1-C8-alkyl or C1-C4-alkyl-monosubstituted, C1-C4-alkyl-disubstituted or C1-C4-alkyl-trisubstituted phenyl, and/or of a C1-C8-alkyl ester of methacrylic or acrylic acid, and (b2)from 0 to 50% by weight of a monomer selected from the group consisting of methacrylonitrile, acrylonitrile, methacrylic acid, acrylic acid, maleic anhydride, malei-mide N-substituted by C1-C4-alkyl, vinyl esters of aliphatic C2-C8-carboxylic acids, acrylamide and vinyl methyl ether, in the presence of the graft copolymer (A).
Patent CA-2137499-A1 (CA)
Title: Retrofit 20 Minutes Fire Door Kit
Inventor: FRIDLYAND SEMYON
IPC: E06B5/16
Filed: 1994-12-07
Abstract: The present invention provides for an apparatus for retrofitting an existing wooden door having opposing surfaces to upgrade the fire rating of the existing door. The apparatus comprises includes a door cover steel sheet having a non-combustible insulating coating on an interior surface for covering at least one surface of the door and a lock set reinforcement bracket having a non-combustible insulating coating on an interior surface for surrounding the lock set opening on the opposite an opposing surface of the door, the apparatus providing at least a twenty minute fire rating to the retrofitted door.  In an aspect of the invention, there is provided a method for increasing the fire rating of a door having opposing surfaces. The method comprises attaching to one surface of the door, a door cover steel sheet having a non-combustible insulating coating on an interior surface to cover the entire surface of the door and attaching to the a second surface of the door, a lock set bracket having a non-combustible insulating coating on an interior surface to surround at least the a lock set opening in the surface of the door, the modified door having at least a twenty minute fire rating.